Tube coupler



FIG. 1 is a perspective view taken from the top, one side and one end of a tube coupler showing our new design;

FIG. 2 is an elevational view taken at a 45° angle from the top shown in FIG. 1;

FIG. 3 is a top plan view thereof;

FIG. 4 is a side elevational view thereof, the opposite side being a mirror image of the side shown;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is an elevational view taken 180° from the view shown in FIG. 2;

FIG. 7 is a perspective view taken from the top, one side and one end of a modified form of the tube coupler shown in FIG. 1;

FIG. 8 is a top plan view of FIG. 7;

FIG. 9 is a side elevational view of FIG. 7, the opposite side being the same as the side shown;

FIG. 10 is an end elevational view of FIG. 7, the opposite end being the same as the end shown;

FIG. 11 is a bottom plan view of FIG. 7;

FIG. 12 is a perspective view taken from the top, one side and one end of a second modified form of the tube coupler shown in FIG. 1;

FIG. 13 is a top plan view of FIG. 12, the bottom being the same as the top shown;

FIG. 14 is a side elevational view of FIG. 12, the opposite side being the same as the side shown; and,

FIG. 15 is an end elevational view of FIG. 12, the opposite end being the same as the end shown. 

The ornamental design for a tube coupler, substantially as shown and described. 